math - Java : how to get correct result? -

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this question has answer here:

in java:

double b = 1234 / (1234+1500);

result is:

0.0

why?

how correct result?

just make 1 of operand double/float - 

double b = (double) 1234.0/(1235+1500);

here casting not required.

the rules benind: if 1 of operand double/float (here 1234.0) other promoted double/float.


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